Provided is a key management method to secure security in an onboard network system having multiple electronic control units storing a shared key. In the key management method of the onboard network system including multiple electronic units (ECUs) that perform communication by frames via a bus, a master ECU stores a shared key to be mutually shared with one or more ECUs. Each of the ECUs acquire a session key by communication with the master ECU based on the stored shared key, and after this acquisition, executes encryption processing regarding a frame transmitted or received via the bus, using this session key. In a case where a vehicle in which the onboard network system is installed is in a particular state, the master ECU executes inspection of a security state of the shared key stored by the ECU or the like.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Key management method used in encryption processing for safely transmitting and receiving messages


    Beteiligte:
    UJIIE YOSHIHIRO (Autor:in) / ANZAI JUN (Autor:in) / KITAMURA YOSHIHIKO (Autor:in) / TANABE MASATO (Autor:in) / KISHIKAWA TAKESHI (Autor:in)

    Erscheinungsdatum :

    2020-01-07


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



    KEY MANAGEMENT METHOD USED IN ENCRYPTION PROCESSING FOR SAFELY TRANSMITTING AND RECEIVING MESSAGES

    UJIIE YOSHIHIRO / ANZAI JUN / KITAMURA YOSHIHIKO et al. | Europäisches Patentamt | 2016

    Freier Zugriff

    Key management method used in encryption processing for safely transmitting and receiving messages

    UJIIE YOSHIHIRO / ANZAI JUN / KITAMURA YOSHIHIKO et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    KEY MANAGEMENT METHOD USED IN ENCRYPTION PROCESSING FOR SAFELY TRANSMITTING AND RECEIVING MESSAGES

    UJIIE YOSHIHIRO / ANZAI JUN / KITAMURA YOSHIHIKO et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Key management method used in encryption processing for safely transmitting and receiving messages

    UJIIE YOSHIHIRO / ANZAI JUN / KITAMURA YOSHIHIKO et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    KEY MANAGEMENT METHOD USED IN ENCRYPTION PROCESSING FOR SAFELY TRANSMITTING AND RECEIVING MESSAGES

    UJIIE YOSHIHIRO / ANZAI JUN / KITAMURA YOSHIHIKO et al. | Europäisches Patentamt | 2020

    Freier Zugriff